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uk Health & medical scares

What to do if…
you have a joint that is suddenly hot, swollen, and painful

Produced and maintained by PanicStation.org Published: Last reviewed: Editorial policy UK guide

Short answer

A sudden hot, swollen, painful joint needs same-day medical assessment. Use the urgent NHS route where you are; call 999 if you are very unwell, unsafe to travel, or cannot walk or put weight on the joint.

Do not do these things

  • Do not wait to see if a suddenly hot, swollen, very painful joint settles by itself.
  • Do not take leftover antibiotics or someone else’s prescription.
  • Do not apply heat, deep massage, or force the joint to move through severe pain.
  • Do not try to drain, puncture, squeeze, or lance anything around the joint.
  • Do not keep walking on a leg joint if putting weight on it sharply increases pain.
  • Do not assume it is gout, arthritis, or a sprain without being assessed.

What to do now

  1. Get urgent help today.

    • In England, call 111 or use NHS 111 online.
    • In Scotland, call 111 or use NHS 24.
    • In Wales, call 111 or use NHS 111 Wales.
    • In Northern Ireland, contact your GP, GP out-of-hours service, or your local emergency department if you suspect a joint infection.
    • If your GP practice is open and you can get through quickly, ask for an urgent same-day appointment.
    • Say clearly: “I have a sudden hot, swollen, painful joint.”
  2. Use emergency help now if any red flag applies.

    • Call 999 if you feel very unwell, faint, confused, rapidly worse, or cannot travel safely.
    • Go to A&E or call 999 if you cannot walk or put weight on the joint.
    • Tell the call handler or clinician if you have a high temperature, feel hot, cold, or shivery, or the redness is spreading.
    • Tell them if the painful joint is a replacement joint, or if you recently had joint surgery, a joint injection, a skin break, a bite, or an infection elsewhere.
  3. Protect the joint while you arrange care.

    • Rest the joint and stop the activity you were doing.
    • If it is a leg joint, avoid weight-bearing if you can.
    • If it is an arm, wrist, hand, or finger joint, support it in a comfortable position.
    • Remove rings, watches, tight shoes, or tight clothing near the swollen area early, before swelling increases.
    • If it helps, use a cool pack wrapped in cloth for 10–20 minutes at a time. Do not put ice directly on skin.
  4. Gather the details you will be asked for.

    • Note when the pain and swelling started.
    • Note which joint is affected and whether it came on suddenly or overnight.
    • Take your temperature if you can do this without delaying help.
    • Write down any recent injury, bite, skin break, joint injection, surgery, infection, or new rash near the joint.
    • Have your medicines and key conditions ready, especially diabetes, immune-suppressing medicines, steroids, blood thinners, or a replacement joint.
  5. Use pain relief cautiously while waiting.

    • If you can usually take it, consider paracetamol as directed on the packet.
    • Do not take more than the packet says.
    • Ask 111, your GP practice, a pharmacist, or the urgent-care clinician before taking ibuprofen or another anti-inflammatory if you have kidney disease, stomach ulcer or bleeding history, asthma made worse by anti-inflammatories, take blood thinners, are pregnant, or have been told to avoid them.

What can wait

  • You do not need to decide now whether it is gout, infection, arthritis, bursitis, or a sprain.
  • You do not need to research diets, supplements, exercise plans, or long-term arthritis treatment today.
  • You do not need to test the joint repeatedly to see if it still hurts.
  • You do not need to arrange private scans before speaking to urgent care.

Important reassurance

A hot, swollen, painful joint can feel frightening because it can limit movement quickly. Getting same-day help is the right first step: it gives clinicians a chance to check for serious causes early and protect the joint.

Scope note

These are first steps for the next few hours only. Diagnosis, tests such as blood tests or joint-fluid testing, and treatment decisions need a clinician who can assess you directly.

Important note

This guide is general information and is not medical or professional advice. If you are rapidly worsening, very unwell, or cannot safely get to care, seek emergency help now.

Additional Resources

About this guide

This guide was produced and is maintained by PanicStation.org using its published editorial process. Official and specialist sources are checked where relevant, and AI-assisted tools may be used for drafting, organisation, and consistency checks. The site operator remains responsible for publication, revision, and removal decisions.

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